Martin M Klain - servo s attiny85

// ATTINY85 - fuses (E:FF, H:DF, L:E2) - clock 8 MHz internal
#define F_CPU 8000000ul
#include <avr/io.h>
#include <util/delay.h>

int main(void)
{
    /* Replace with your application code */
    DDRB |= (1<<PB0);
    TIMSK |= (1<<OCIE0A);
    TCCR0A |= (1<<COM0A1)|(1<<WGM00);
    TCCR0B |= (1<<CS02);    // 8MHZ / 256 = 31250

    while (1)
    {
        OCR0A = 8;          // Zkus si zadat ruzne hodnoty
        _delay_ms(1000);
        OCR0A = 40;
        _delay_ms(1000);
    }
}